points = [
	[0,0,0],
	[0.5,0,0.5],
	[0,0.5,0.5],
	[-0.5,0,0.5],
	[0,-0.5,0.5],
	[0,0,1]
];
faces = [
	[0,1,2],
	[0,2,3],
	[0,3,4],
	[0,4,1],
	[5,1,2],
	[5,2,3],
	[5,3,4],
	[5,4,1]
];

translate([0,0,3.5]) {
	minkowski() {
		cube([29,29,6], center=true);
		polyhedron(points,faces);
		*sphere(0.5);
	}
}
